| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 88.0 | +157.7% |
| 2023/12 | 34.2 | -10.1% |
| 2022/12 | 38.0 | -3.6% |
| 2021/12 | 39.4 | -64.1% |
| 2020/12 | 109.6 | -5.9% |
| 2019/12 | 116.4 | -15.9% |
| 2018/12 | 138.5 | +81.9% |
| 2017/12 | 76.1 | +62.6% |
| 2016/12 | 46.8 | -21.2% |
| 2015/12 | 59.4 | +31.1% |
| 2014/12 | 45.3 | +4.5% |
| 2013/12 | 43.4 | +4.9% |
| 2012/12 | 41.4 | -17.1% |
| 2011/12 | 49.9 | +16.6% |
| 2010/12 | 42.8 | - |